This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to SI unit kg and measured against primary material from an NMI, e.g. NIST.
Certified content incl. uncertainty and expiry date are given on the label.
Download your certificate at: http://www.sigma-aldrich.com.
Nitrate standard can be used in the analysis of nitrate in drinking water samples using ion-interaction chromatographic method of analysis.
1000 mg/L nitrate in water, prepared with high purity NaNO3 and water
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